<template>
  <div :style="backgroundImg" class="login-container">
    <div class="title-img">
      <!-- <img src="/static/images/logo-2-2.png" style="max-width: 100%;"> -->
      <!-- <img src="../../../static/images/banner.png" style="max-width: 100%;"> -->
    </div>
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="on" label-position="left">
      <!-- <h3 class="title">{{ $store.getters.lang.name }}</h3> -->
      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          v-model="loginForm.username"
          name="username"
          type="text"
          auto-complete="on"
          placeholder="请输入用户名"
          @keyup.enter.native="handleLogin"/>
      </el-form-item>
      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :type="pwdType"
          v-model="loginForm.password"
          name="password"
          auto-complete="on"
          placeholder="请输入密码"
          @keyup.enter.native="handleLogin" />
          <!-- <span class="show-pwd" @click="showPwd">
            <svg-icon icon-class="eye" />
          </span> -->
      </el-form-item>
      <!-- <el-form-item prop="vrifyCode">
        <el-row>
          <el-col :span="18">
            <span class="svg-container">
              <svg-icon icon-class="vcode" />
            </span>
            <el-input
              v-model="loginForm.vrifyCode"
              name="vrifyCode"
              type="text"
              auto-complete="on"
              maxlength="4"
              placeholder="请输入图形验证码"
              @keyup.enter.native="handleLogin"/>
          </el-col>
          <el-col :span="6">
            <el-image :src="vcodeSrc" fit="fill" class="vrifycode-img" @click="changeCodeImg()"/>
          </el-col>
        </el-row>
      </el-form-item> -->
      <el-form-item>
        <el-button :loading="loading" type="primary" style="width:100%;" @click.native.prevent="handleLogin">
          登录
        </el-button>
      </el-form-item>
      <!-- <div class="tips">
        <span style="margin-right:20px;">username: admin</span>
        <span> password: admin</span>
      </div> -->
    </el-form>
  </div>
</template>

<script>
// import { isvalidUsername } from '@/utils/validate'
import SparkMD5 from 'spark-md5'
import { getUserName } from '@/utils/auth'
import axios from 'axios'

export default {
  // name: 'Login',
  data() {
    // const validateUsername = (rule, value, callback) => {
    //   // if (!isvalidUsername(value)) {
    //   //   callback(new Error('请输入正确的用户名'))
    //   // } else {
    //   callback()
    //   // }
    // }
    // const validatePass = (rule, value, callback) => {
    //   if (value.length < 5) {
    //     callback(new Error('密码不能小于5位'))
    //   } else {
    //     callback()
    //   }
    // }
    return {
      loginForm: {
        username: getUserName(),
        password: ''
        // vrifyCode: ''
      },
      loginRules: {
        username: [{ required: true, message: '请输入用户名' }],
        password: [{ required: true, message: '请输入密码' }]
        // vrifyCode: [{ required: true, message: '请输入图形验证码', trigger: 'blur' }]
      },
      vcodeSrc: '',
      loading: false,
      pwdType: 'password',
      redirect: undefined,
      backgroundImg: {
        backgroundImage: 'url(' + require('@/assets/bg_images/login-bg.jpg') + ')',
        backgroundRepeat: 'no-repeat',
        backgroundSize: '100% 100%'
      }
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        this.redirect = route.query && route.query.redirect
      },
      immediate: true
    }
  },
  created() {
    this.changeCodeImg()
  },
  methods: {
    changeCodeImg() {
      const num = Math.ceil(Math.random() * 10)
      const url = `${process.env.BASE_API}/kaptcha/get`
      axios.get(url, {
        params: { 'num': num },
        responseType: 'arraybuffer'
      }).then(response => {
        this.vcodeSrc = 'data:image/png;base64,' + btoa(new Uint8Array(response.data).reduce((data, byte) => data + String.fromCharCode(byte), ''))
      }).then(data => {
        console.log(data)
      })
    },
    showPwd() {
      if (this.pwdType === 'password') {
        this.pwdType = ''
      } else {
        this.pwdType = 'password'
      }
    },
    handleLogin() {
      this.$refs.loginForm.validate(valid => {
        if (valid) {
          const loginData = Object.assign({}, this.loginForm)
          loginData.password = this.getPasswordMd5(this.loginForm.password)
          this.loading = true
          this.$store.dispatch('Login', loginData).then((res) => {
            if (res.code === 200) {
              this.$router.push({ path: this.redirect || '/' })
            } else {
              this.loading = false
              this.loginForm.password = ''
              this.$message.error(res.message)
            }
          }).catch((err) => {
            this.loginForm.password = ''
            this.loading = false
            this.$message.error(err.message)
          })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getPasswordMd5(password) {
      const spark = new SparkMD5()
      spark.append(password)
      return spark.end()
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss">
$bg:#2d3a4b;
$light_gray:#111;

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;
    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px  rgba(255,255,255,0.9) inset !important;
        -webkit-box-shadow: 0 0 0px 1000px rgba(255,255,255,0.9) inset !important;
        -webkit-text-fill-color: #111 !important;
      }
    }
  }
  .el-form-item {
    // border: 1px solid rgba(255, 255, 255, 0.1);
    // background: rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(211,211,211,0.6);
    background: rgba(255,255,255,0.8);
    border-radius: 5px;
    color: #454545;
  }
  // .vrifycode-img {
  //   width: 110px;
  //   height: 50px;
  //   margin-top: 1px;
  //   float: right;
  // }
}

</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#111;
.login-container {
  position: fixed;
  height: 100%;
  width: 100%;
  background-color: $bg;
  .title-img {
      text-align: center;
      position: absolute;
      left: 0;
      right: 0;
      padding: 35px 35px 15px 35px;
      margin: 220px auto;
    }
  .login-form {
    position: absolute;
    left: 0;
    right: 0;
    width: 430px;
    max-width: 95%;
    padding: 35px 35px 15px 35px;
    margin: 330px auto;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }
  .title {
    font-size: 26px;
    font-weight: 400;
    color: $light_gray;
    margin: 0px auto 40px auto;
    text-align: center;
    font-weight: bold;
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
</style>
